24 chromatography • spectroscopy
Size and speed key to chromatography and spectroscopy advances
The latest releases in separation technology include a completely new approach to liquids analysis and advanced columns which focus on improving results and laboratory productivity. Sean Ottewell reports.
Parmi les tout derniers produits en technologie de la séparation, une approche toute nouvelle de l’analyse des liquides et des colonnes avancées qui ont pour objectif d’améliorer les résultats et la productivité des laboratoires. Un reportage de Sean Ottewell.
Die jüngsten Entwicklungen in der Separationstechnik beinhalten einen komplett neuen Ansatz bezüglich der Analyse von Flüssigkeiten und hoch optimierten Trennsäulen, der auf Verbesserung der Ergebnisse und Laborproduktivität ausgerichtet ist. Sean Ottewell berichtet.
A
2 Technologies has announced its new integrated FTIR analyser designed for the rapid analysis of liquids by FTIR spectroscopy. Based on A2’s widely used ML analyser, and occupying just eight square inches on a lab bench, the ML with DialPath Technology represents a completely new approach to the analysis of liquid samples.
Te technology features a tumbler- like optical head that can be rotated into position to provide one of three, factory-set, selectable sample path lengths between 30 and 250 microns. To analyse a sample, a drop of the liquid is placed on a stationary infrared-transparent window mounted on the top surface of the analyser, and then a second window is rotated into position, thus sandwiching the sample between the two windows. Tis creates highly reproducible, fixed
sample pathlength between the two windows.
Te DialPath technology offers the user their choice of three different path lengths, which are specified when the system is ordered, affording a FTIR liquids analyser with exceptional versatility, ease of use and performance in multi- application environments. For lower concentration samples, simply dial in a longer path length window set; for samples that are more concentrated, use the shorter path length combination.
Te DialPath Technology makes liquids analysis as easy to use as ATR. Tere is no reason to use traditional demountable liquid cells, which can leak, require spacers, may fringe, are difficult to fill and clean, and are particularly difficult to use with more viscous samples. Te DialPath- equipped ML readily accommodates
samples with a wide range of viscosities. Cleaning the DialPath analyser is as simple as rotating the window away from the fixed window and wiping the liquid sample off both windows.
Graham Miller, president of A2 Technologies comments: “Te ML with DialPath Technology represents the first breakthrough in liquids analysis by FTIR in a number of years. ATR has become a mainstay for FTIR analysis because of its ease of use and versatility and now this new technology makes longer pathlength liquids analysis just as easy. Te ML with DialPath Technology will find great use among analysts who frequently measure liquid samples in industries as varied as petroleum, energy, chemical and food.”
Te new SPECTRO ARCOS 165 optical emission spectrometer
Fig. 1. Uninterrupted 24/7 operation and superior sensitivity from the TSQ Quantum XLS.
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